Hartke finally gives the keyboard player some much-needed attention with this powerful full-range, 2-way professional monitoring system. Sonically, keyboards and electric basses are similar in many ways. We found that our legendary aluminum cones do for keyboards exactly what the do for bass: Namely pump out crisp, rich, beautiful tone. FEATURES:[ 200 watt, 4 channel keyboard amplifier[ Innovative Kickbackâ„¢ 2-way enclosure [ 15"" aluminum cone woofer[ 1"" titanium compression driver[ 4 stereo channels (8 inputs) including 1 Mic input[ 7-band graphic EQ[ Independent Local, PA, and Headphone bus section ";